Home / 759,715.71-1,139,575.49-310,436.50

Finding the Fourth Proportional to 759,715.71, 1,139,575.49 and 310,436.50

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Solution

The fourth proportional to 759,715.71, 1,139,575.49 and 310,436.50 is: 465,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,715.71 : 1,139,575.49 = 310,436.50 : x
  2. Step 2: Convert to fraction form
    759,715.71/1,139,575.49 = 310,436.50/x
  3. Step 3: Cross multiply
    759,715.71x = 1,139,575.49 × 310,436.50
  4. Step 4: Simplify right side
    759,715.71x = 353,765,826,374.21
  5. Step 5: Solve for x
    x = 353,765,826,374.21/759,715.71
  6. Step 6: Final answer
    x = 465,655.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.